EP2565442A1 - System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln - Google Patents

System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln Download PDF

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Publication number
EP2565442A1
EP2565442A1 EP11180029A EP11180029A EP2565442A1 EP 2565442 A1 EP2565442 A1 EP 2565442A1 EP 11180029 A EP11180029 A EP 11180029A EP 11180029 A EP11180029 A EP 11180029A EP 2565442 A1 EP2565442 A1 EP 2565442A1
Authority
EP
European Patent Office
Prior art keywords
wind turbine
operational
power
target value
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11180029A
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English (en)
French (fr)
Inventor
Thomas Esbensen
Gustav Hoegh
Ramakrishnan Krishna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP11180029A priority Critical patent/EP2565442A1/de
Priority to US13/562,662 priority patent/US20130187383A1/en
Priority to CN2012103245622A priority patent/CN102979674A/zh
Publication of EP2565442A1 publication Critical patent/EP2565442A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/14—Testing gas-turbine engines or jet-propulsion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/103—Purpose of the control system to affect the output of the engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to an arrangement and to a method for determining a target value of an operational variable of a wind turbine and to a wind turbine comprising the arrangement.
  • a wind turbine may be operated by supplying target settings (also known as set points or references) to the wind turbine controller.
  • the wind turbine controller operates according to some reference values or target settings that may typically be a maximum power and a maximum rotational speed.
  • the “references” or “target values” are thus just the targets (maximum value) of the control strategy.
  • control signals may conventionally also be denoted as references and are primarily “a pitch reference”, “a torque or power reference” (and “some control signal for the yaw system”).
  • control signals may conventionally also be denoted as references and are primarily “a pitch reference”, “a torque or power reference” (and “some control signal for the yaw system”).
  • control signals to distinguish them from the “references” or “target setting” which indicate maximal values, in particular maximum power and a maximum rotational speed.
  • the wind turbine may adapt its operational state, in particular, regarding power production, rotational speed, torque, voltage of the generated electric power, etc.
  • wind turbines have been operated using a fixed target rotational speed and a fixed target power.
  • a conventional turbine controller may aim to hold this speed and power at high wind speeds (there has to be sufficient winds in order to operate at these targets, otherwise the speed and/or power will be lower).
  • the maximum speed and power are typically chosen in order to reduce structural loads and not to overload the electrical components.
  • the target speed and the target power are fixed, they are very likely to be too conservative, since they have to consider worst-case wind speeds, turbulence, wind shear, ambient temperatures, etc..
  • the wind turbine may be operated above the fixed references without impairing the wind turbine.
  • the wind turbine may be operated by supplying a fixed target rotational speed and a fixed target power to the wind turbine controller.
  • the target value of the operational variable may be used in order to reduce noise emissions of the wind turbine and reduce mechanical and/or electronic loads of the wind turbine components, while at the same time the power production of the wind turbine is maximized.
  • an arrangement for determining (in particular comprising computing, calculating, deriving, estimating, and/or outputting) a target value (in particular comprising a power set point or target value, a torque set point or target value and/or a speed set point or target value, wherein the set point may define maximal values of the respective operational variables, wherein the wind turbine should be operated not to exceed these maximal values) of an operational variable (the operational variable in particular comprising a variable defining or setting an operational state of the wind turbine, such as power and/or torque and/or rotor speed and/or generator speed) of a wind turbine is provided.
  • a target value in particular comprising a power set point or target value, a torque set point or target value and/or a speed set point or target value, wherein the set point may define maximal values of the respective operational variables, wherein the wind turbine should be operated not to exceed these maximal values
  • an operational variable the operational variable in particular comprising a variable defining or setting an operational state of the wind turbine, such as power and/or torque and
  • the arrangement comprises at least one input terminal (in particular an electrical and/or optical input terminal) for receiving at least one operational parameter (or a plurality of operational parameters, the operational parameters defining or representing an actual operational state of the wind turbine) of the wind turbine; and a determining unit (in particular comprising an electronic circuit and/or a computer program product, in particular comprised in a wind turbine controller) to determine (in particular comprising computing, calculating, estimating, determining using modelling) a target value (also called a set point, been an intended maximal value, at which the wind turbine may be operated without deteriorating the wind turbine, such that the target value is not superseded during operation of the wind turbine) of an operational variable (a variable, which may set an intended operational state of the wind turbine) of the wind turbine based on the operational parameter.
  • a target value also called a set point, been an intended maximal value, at which the wind turbine may be operated without deteriorating the wind turbine, such that the target value is not superseded during operation of the wind turbine
  • an operational variable a
  • the target value of the operational variable of the wind turbine may be determined by the determining unit to change.
  • the target of the operational variable of the wind turbine is not a fixed, predetermined value, but may be adapted depending on the operational actual condition the wind turbine is operating in.
  • the efficiency of the wind turbine may be improved, in particular regarding power production, while at the same time local requirements, such as noise requirements, voltage requirements or other electric requirements may be met.
  • the target value of the operational variable may be higher than the fixed target value according to the prior art.
  • the arrangement may be adapted for receiving a plurality of operational parameters of the wind turbine and the target value of the operational variable may be determined based on the particular combination of the received operational parameters.
  • a particular target value may be associated.
  • the operational parameters may reflect as accurate as possible the actual operational state of the wind turbine, the operational parameters including in particular external operational parameters, such as temperature, humidity, air density, turbulence, etc. and/or internal operational parameters, such as rotational speed, generated power, torque, generated voltage, generated current, generated reactive power, generated active power, actual mechanical and/or electronic load, etc.
  • the plurality of operational parameters may be taken into account, in particular aiming for maximizing power production of the wind turbine, while at the same time satisfying local requirements, in particular regarding noise emissions, voltage at the point of commons coupling, reactive power, active power, etc. and/or also satisfying load constraints.
  • the operational variable comprises a power-related operational variable (the electrical power being generated by the wind turbine), in particular a power or a torque of the generator of the wind turbine and/or a rotational speed-related operational variable, in particular a generator speed or a rotor speed.
  • a power-related operational variable the electrical power being generated by the wind turbine
  • the wind turbine may be conveniently controlled to achieve an intended operational state such as not to exceed the target value of the operational variable.
  • the arrangement for determining the target value may be advantageously employed for controlling a wind turbine.
  • the operational parameter of the wind turbine comprises one or more of the following: an ambient temperature (in particular, a temperature around the wind turbine); a wind speed (in particular, a wind speed measured close to the wind turbine or estimated); an icing condition (in particular, being determined or measured close to the wind turbine or close to a blade of the wind turbine); a turbulence (in particular, determined by measuring a turbulence of air around the wind turbine); an air density (in particular, obtained by measuring or approximating the density of air around the wind turbine); a humidity (in particular, obtained by measuring the humidity of air around the wind turbine); a vibration condition of the wind turbine (in particular, obtained by measuring vibrations of the entire turbine or a portion of the turbine), in particular a blade vibration (in particular, a longitudinal blade vibration); a noise parameter indicative of a required and/or actual noise generated by the wind turbine (in particular obtained by measuring sound generated by the wind turbine, or obtained instead based on knowledge or a model to predict how the noise will be, in
  • a load parameter indicative of a mechanical/electronic required and/or actual load of the wind turbine a thrust force a wind turbine tower is subjected to (in particular a thrust force on the rotor); an electrical current output by the wind turbine; an electrical voltage output by the wind turbine; an electrical active power output by the wind turbine; an electrical reactive power output by the wind turbine; a torque (in particular a generator is subjected to or a rotor blade acts on the generator); a rotational speed of a generator or a rotor of the wind turbine; a maximum power (such as a maximum power derived over a certain time interval in the past); an electrical reactive power requirement by a utility grid; and electrical active power requirement by a utility grid; an electrical voltage requirement by a utility grid, wherein the wind turbine is connected, in particular via a point of common coupling, to which a plurality of wind turbines may be connected,
  • considering the plurality of operational parameters may enable to set the target value of the operational variable higher than a conventional target value of the operational variable.
  • the determining unit is further adapted (in particular by providing an electronic circuit and/or a computer program module or computer program product) to determine the target value of the operational variable of the wind turbine by determining at least one constraint for the operational variable, wherein the constraint is determined based on the at least one operational parameter.
  • the determining the constraint may comprise modelling and/or monitoring and/or observing a wind turbine component and/or an external component external to the wind turbine.
  • a constraint may be associated with a particular wind turbine component or an external component.
  • a component of the wind turbine may comprise a power converter(s) (in particular AC-DC-AC converter, or a AC-DC converter) for converting a variable frequency power signal to a fixed frequency power signal (or DC power signal); a generator for generating electrical energy by converting mechanical energy; a wind turbine transformer for transforming an electrical voltage output from the generator or the converter of the wind turbine; a gearbox coupled between a rotor and a generator; a drive train coupled between a rotor and a generator; a nacelle mounted on top of a tower, the nacelle supporting a rotor; a rotor blade coupled to a rotor of the wind turbine; a tower; a foundation; and/or an overall design component; and/or a wind turbine controller.
  • a power converter(s) in particular AC-DC-AC converter, or a AC-DC converter
  • a generator for generating electrical energy by converting mechanical energy
  • a wind turbine transformer for transforming an electrical voltage output from the generator or the converter of the
  • the (in particular AC-DC-AC or AC-DC) converter may require a constraint regarding the operational variable of the wind turbine.
  • Another component of the wind turbine such as the wind turbine transformer, may, based on the plurality of operational parameters, require another constraint for the operational variable.
  • the arrangement may comprise a circuit module or software module modelling and/or monitoring and/or observing this particular component for associating a constraint therewith.
  • a rotor blade may be monitored by measuring vibrations of the rotor blade and/or movements of the rotor blade, which may be derived based on the operational parameters or may be derived based on measuring the vibrations of the rotor blade.
  • the rotor blade may for example impose a particular constraint for the operational variable of the wind turbine.
  • one or more wind turbine components or/and one or more external components may impose different constraints for the operational variable that affect the target value.
  • the target value of the operational variable of the wind turbine may be set such that these wind turbine components and/or external components may not impaired by the operation of the wind turbine when operated according to the target value of the operational variable.
  • the arrangement may be advantageously employed for controlling a wind turbine, without damaging the wind turbine or exceeding relevant constraints, while at the same time maximizing power production.
  • external component comprises one or more of the following: a wind farm transformer for transforming an electrical voltage provided at a point of common coupling to a grid voltage; a wind farm controller for controlling a plurality of wind turbines; a grid to which the wind turbine is connected; a weather station estimating and/or monitoring a weather condition; and/or a wind farm overall design controller.
  • the determining the target value of the operational variable of the wind turbine comprises determining a minimum of the at least one constraint.
  • the minimum is taken over the plurality of constraints.
  • the determining unit is further adapted to change the target value of the operational variable of the wind turbine, if the at least one operational parameter changes.
  • changing at least one of a plurality of operational parameters may involve that the determining unit changes the target value of the operational variable.
  • the target value of the operational variable is determined such that the power production is maximized.
  • an arrangement for controlling a wind turbine comprising an arrangement for determining a target value (in particular maximal speed and maximal power) of an operational variable according to one of the embodiments as described above.
  • the arrangement for controlling the wind turbine further comprises an output terminal for supplying, to at least one operational component of the wind turbine, a (wind turbine actuator) control signal indicative of a control variable of the wind turbine, wherein the control signal is based on the target value of the operational variable.
  • the arrangement for determining the target value may be advantageously be employed in an arrangement for controlling a wind turbine, in order to improve the efficiency of the wind turbine, while at the same time meeting constraints set by wind turbine components or external components.
  • the operational component comprises a AC-DC-AC-converter and/or a generator (in particular coupled to the converter, wherein the converter and/or the generator supplies the electric energy generated by the wind turbine to a point of common coupling, which is in turn coupled to the utility grid); and/or a blade pitch system (adapted for adjusting a blade pitch angle of at least one rotor blade connected to a rotor of the wind turbine).
  • the operational component may be a component of the wind turbine, which enables setting or defining the operational state of the wind turbine (excluding the external conditions the wind turbine is subjected to, such as wind speed, temperature, humidity, air density, etc.).
  • the operational state of the wind turbine may be conveniently controlled.
  • the converter may be supplied with a voltage control signal, a power control signal or torque control signal.
  • the blade pitch system may be supplied with a pitch angle control signal defining an intended blade pitch angle of a rotor blade connected to the rotor of the wind turbine, wherein in particular the intended blade pitch angle, the voltage control signal, and/or the power control signal is based on the maximal speed and/or the maximal power.
  • the overall requirements of the wind turbine may be represented by maximal power and maximal speed (in order not to exceed requirements for power, loads, noise).
  • the turbine controller may have to control this itself using the available actuators (mainly power/torque, and blade pitch angle) in order to achieve a certain rotational speed.
  • the blade pitch angles and power are controlled in order to track the maximal speed and maximal power.
  • the power control signal sent to the converter or generator is not necessarily 3 MW, because at low wind speeds this power may not be obtainable and would just decelerate the rotor (rotational speed) very quickly. Even at rated power production the power control signal actually sent to the actuator may not have to be exactly 3 MW, since it may be a little larger or smaller and change over time in order to damp (actively) oscillations.
  • the operational component may set its mechanical and/or electronic properties such as to meet the requirements defined by the control signal.
  • the control signal comprises a blade pitch angle related control signal (in particular being adapted to be supplied to the blade pitch angle system, which causes the rotor blade to rotate along its longitudinal axis to adapt its rotor blade pitch angle according to the control signal); a power-related operational control signal, in particular a power or a torque of the generator or converter of the wind turbine, and/or a yaw positions-related control signal (in particular specifying a rotational position of the nacelle mounted on top of the wind turbine tower, wherein the nacelle supports the rotor to which the rotor blades are mounted).
  • a blade pitch angle related control signal in particular being adapted to be supplied to the blade pitch angle system, which causes the rotor blade to rotate along its longitudinal axis to adapt its rotor blade pitch angle according to the control signal
  • a power-related operational control signal in particular a power or a torque of the generator or converter of the wind turbine
  • a yaw positions-related control signal in particular specifying a rotational position of the nac
  • a wind turbine comprising an arrangement for determining a target value of an operational variable of a wind turbine or comprising an arrangement for controlling a wind turbine.
  • the wind turbine may generate more electrical energy than a conventional wind turbine.
  • a method for determining a target value of an operational variable of a wind turbine comprising: receiving at least one operational parameter of the wind turbine; and determining a target value of an operational variable of the wind turbine based on the operational parameter and in particular outputting a signal indicative of the target value.
  • the wind turbine may be operated more closely at its constraints taking into consideration varying operating conditions and different requirements for the individual system components.
  • the wind turbine has to act within the design specification by adjusting the target or maximal settings (known as set points or references, such as reference voltage, reference power or reference torque in the wind turbine controller, so that a maximum power/load/noise relationship is acquired.
  • the design specification may involve the main system components and may include load requirements, temperature requirements, noise requirements, power requirements, etc.
  • constraints are not too conservative, but they cannot be exceeded either, which is calling for adaptive constraints.
  • the Figure schematically illustrates an arrangement for controlling a wind turbine according to an embodiment of the present invention.
  • the arrangement 130 for controlling a wind turbine according to an embodiment of the present invention comprises an arrangement 100 for determining a target value of an operational variable of a wind turbine according to an embodiment of the present invention.
  • the arrangement 100 for determining a target value of an operational variable, in particular a power set point or power reference and/or a speed set point or speed reference output at the output terminals 101 and 102, respectively, comprises an input terminal 104 for receiving at least one operational parameter 106, such as a temperature, a current, a voltage, active/reactive electrical power.
  • the arrangement 100 comprises a plurality of component modules (such as software modules or circuit sections) 108-110, which monitor or model different wind turbine components of the wind turbine, such as a converter, a generator, a transformer, a gearbox, a nacelle, a rotor blade, a tower, and external components external to the wind turbine, such as a wind turbine controller, a wind farm controller, an utility grid, a weather station and an overall design controller.
  • Each component modelled by the component modules 108-110 requires a particular constraint regarding power (output at terminal 112) and speed (output at terminal 114) based on the operational parameter 106 received at the input terminals 105 of the component modules 108-110.
  • Some of the component modules 108-110 may output a power constraint at output terminal 112 and a speed constraint at output terminal 114, some of the component modules 108-110 may output only a power constraint at output terminal 112 and some of the component modules 108-110 will output only a speed constraint at output terminal 114 but no power constraint at output terminal 112.
  • the respective power constraints 113 output at output terminals 112 of the component modules 108-110 are supplied to a processing module 116, which is adapted to determine a minimum of all supplied power constraints 113 and outputs the minimum at an output terminal 118.
  • the speed constraints 115 output at output terminals 114 of the component modules 108-110 are supplied to another processing section 120, which calculates or computes the minimum of all supplied speed constraints 115 received at an input terminal 119.
  • the component modules 108-110 supply the constraints 113 (regarding power) and 115 (constraint regarding speed) to the processing modules 116 and 120.
  • the processing modules 116 and 120 have output terminals 118 and 121, which provide the minimum of the power constraint and speed constraint, respectively, received from the component modules 108-110.
  • the arrangement 100 for determining the target value of the operational variable outputs the target value of the power or power set point.
  • the arrangement 100 for determining the target value of the operational variable outputs the target value of the speed or the speed set point.
  • the arrangement 130 for controlling a wind turbine comprises the arrangement 100 for determining a target value of an operational variable and further comprises a control section 132, which receives the signals supplied to the output terminals 101 and 102 of the arrangement 100 for determining the target value of the operational variable.
  • control sections 132 receives the power set point and the speed set point and computes based thereon a control signal 135 at an output terminal 134, wherein the control signal is indicative of a control variable, such as a blade pitch related control signal, a power-related operational control signal and/or a yaw position related control signal.
  • a control variable such as a blade pitch related control signal, a power-related operational control signal and/or a yaw position related control signal.
  • the control signal 135 output at the output terminal 134 is supplied to a wind turbine 136, in particular to a converter and/or to a generator and/or to a blade pitch system of the wind turbine 136.
  • the control signal 135 received by the wind turbine 136 is used to control the operational state of the wind turbine 136, in particular regarding power production, output voltage, reactive power output and/or active power output such that the wind turbine satisfies to have a power production below the power reference output at terminal 101 and to have a speed below the speed reference output at terminal 102.
  • the arrangement 130 for controlling a wind turbine may be a component of the wind turbine 136.
  • the arrangement 130 supplies the control signal 135 to the wind turbine 136, in order to set the operational state of the wind turbine 136.
  • Embodiments of the invention feature a paradigm shift, where a wind turbine may no longer operate according to fixed set points, but will adapt online to the conditions of the individual system components.
  • a turbine may have a target power of e.g. 2000 kW which may be a compromise between maximizing electrical power and reducing loads. This means that 2000 kW will be the rated power no matter the conditions.
  • the turbine may be able to produce e.g. 2200 kW, if the temperature is low, since this may assure effective cooling of the electrical system (the converter, generator, transformer).
  • the rated speed (and/or power) may be increased due to low vibration level in the turbine.
  • Converter temperature, current, voltage, active/reactive electrical power
  • Transformer temperature, current, voltage, active/reactive electrical power
  • Gearbox / drive train (torque, rotational speed, vibrations, temperature)
  • Nacelle (vibrations, temperature) Blades (rotational speed, vibrations, deflection in particular of the tip, ice) Tower (thrust, vibrations)
  • Wind farm controller maximum power, noise requirements, visual requirements
  • Grid power requirements, voltage requirements
  • Weather station ambient temperature, turbulence, air density, humidity, shear
  • Overall design Absolute maximum limits
  • This invention may introduce a paradigm shift in the way a turbine is operated and constraint, compared to the traditional approach. According to an embodiment of the present invention the following is performed and/or achieved:
  • the controller (such as controller 100 and/or 130) may still have absolute maximum set points, which cannot be exceeded due to safety.
EP11180029A 2011-05-09 2011-09-05 System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln Withdrawn EP2565442A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11180029A EP2565442A1 (de) 2011-09-05 2011-09-05 System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln
US13/562,662 US20130187383A1 (en) 2011-05-09 2012-07-31 System and method for operating a wind turbine using adaptive reference variables
CN2012103245622A CN102979674A (zh) 2011-09-05 2012-09-05 使用自适应参考变量操作风力涡轮机的系统和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11180029A EP2565442A1 (de) 2011-09-05 2011-09-05 System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln

Publications (1)

Publication Number Publication Date
EP2565442A1 true EP2565442A1 (de) 2013-03-06

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EP11180029A Withdrawn EP2565442A1 (de) 2011-05-09 2011-09-05 System und Verfahren zum Betreiben einer Windturbine unter Verwendung anpassungsfähiger Bezugsvariabeln

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US (1) US20130187383A1 (de)
EP (1) EP2565442A1 (de)
CN (1) CN102979674A (de)

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US10294921B2 (en) 2014-06-20 2019-05-21 Mita-Teknik A/S System for thrust-limiting of wind turbines
WO2019120404A1 (en) * 2017-12-22 2019-06-27 Vestas Wind Systems A/S Method of controlling a wind turbine generator
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DE102011101897A1 (de) * 2011-05-18 2012-11-22 Nordex Energy Gmbh Verfahren zum Betreiben einer Windenergieanlage
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US10320196B2 (en) * 2013-12-11 2019-06-11 Vestas Wind Systems A/S Wind power plant, and a method for increasing the reactive power capability of a wind power plant
US9631606B2 (en) * 2014-04-14 2017-04-25 General Electric Company System and method for thrust-speed control of a wind turbine
CN107532567B (zh) * 2015-03-20 2019-07-05 维斯塔斯风力系统集团公司 衰减风力涡轮机中的振荡
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